Hospital bed



Aug. 18, 1925.

G. F; SISBOWER ,ET AL HOSPITAL BED Filed Sept. 20, 1922 2 Sheets-Sheet 1lilllllllzlllllll I .llllll'lllillll 2|-lli|llll|:|l|ll..

Aug. 18', 1925. v 1,550,462

G. F. SISBOWER ET AL HOSPITAL BED Filed Sept. 20, 1922 2 Sheets-Sheet 2C) C) QC) 0 C) Q Q ill Patented Aug. 18, 1925.

UNITED s r-Ares PATENT oemca.

GEORGE F: SISL'BOWERZ. OFFLUSHING, .AND IDOIIIS PIT'ICNI, OF. NEW YORK;N.- Y.

ASSIGNO'RS TO MANHATTAN-'RGME"GQMPANX, BRANCH 0F RO'ME METAIDLIG BED-ST-EADCO., OF LONG- ISDAND. GIT,.I TEW YORK, A' COR-PCRAT'ION OF NEWYORK;

HOSPITAL BED.-

Applieation filed September 20,1922. Serial No; 589,329.

To all wliom ii 01mg concern:

Be'ihknownthat we, GEORGE F. SIsB'ownR, a' citizen of the United States,residing. at Flushing, New York city, in the county of Queens andSt'ateof New York, and Louis E. Prr'roNI, a subject of the King of' Italy,residing, at the city of New York, in the county of-Queens and State ofNew York, have invented certain new and useful I'mprovements inHospitahBeds, the following being a full,'clear,. and exactdisclosure'of the one form ofour invention which we at present deempreferable. I

For a-dtailed description of the present form of our invention,reference maybe had't o the following specification and to-theaccompanying drawings forming. a part thereof, wherein I r Fig. l isaside elevation with the'bed folded,

Fig. 2 is a similar-view with the bed flat Fig; 3a plan View;

Figs. 4-and 5' show details. v

Our invention relates to a'bed designed particularly for hospitals. It.consists in certain arrangements for rendering a bed spring. of thecoil'typefoldable, so that it may be turned up under the back of thepatient and also under his knees as is often required in hospitals. 'Bythe coil-type of bed springwe mean that type wherein there are a; seriesof upright helical springs mounted on an underl' ing frame with-thehelicals loosely linked to one another at their tops usually by smallhorizontal helicals and enclosed alightmarginal'retaining frame. The diffioultyof" folding or bending such a bed spring has heretofore made'itnecessary in practice to use flat wire-fabric mattresses for hospitalbeds such mattresses being much less comfortable than the. coillspringtype We have overcoine this di'l'hculty by constructing the underlying.frame in. sec tionslongitudinally free of'one another-,and making hingedjoints inthe upper. marginal frame' atth'e bendingpointss The axis-ofeach b end is at the hinge joint inthemangin'al" frame, while the lowerframezsections are so mounted as to draw away from or approachto oneanother as: the bending 90c'urs; In this way the upper surface of thespring. is maintained continuous, the: sec+ tions merely standing atdifferent angles'and the relation thereto of the stuffed mattress on topof the spring remains unchanged. The stuffed mattress conforms to theangular position of the said section, and the upright helicals remain atright angles thereto. At the bottom, however, the continuity is brokenby gaps between the separated sections, but suchgapsdo not affect thesupport of the stuiied mattress while the hinged marginal frame preventsthe helicals from sagging down sidewise when downward weight is appliedto them atan angle when the bed is bent.

Referring to the drawings, A ,.A A are the head, middle and footsections of the lower bed spring frame. The middle section A isshorterthan the other two and the one at the foot shorter than theone at thehead of the bed. When the spring is in its normalflat position (seeFigs. 2 andL3) A and A are then separated by a short gap, since thebending. draws them apart .(see Fig. 1) while A and A are separated by awide gap since the bending. will draw them together (see Fig; 1). Theupright helicals- B, B,.etc., are'inounted in groups on the respectivesections, being seated on cross bars C, C, etc., as shown in Fig 5.Thebars C, C, etc, are flat andrstand-up edgewise beneath 'the'helicals,but at their endslthey are twisted 90 degrees and also bentover so astolie flaton thetop=ofthe side members of the aforesaid sections (seeFigs. 3'and5) and be riveted thereto. The bottom turn of each helical Bis passed through holes 29 6? near the upper edge of the cross-bar C. Bythis means eachhelical is firmly seated on the frame and securedthereto. The linking of the helicals by small horizontal helicals isshown at the lower right. corner of The entire series oflielicals isenclosed by a rectangular marginal frame It having its side railsjointed atS andS and-secured to each one of the outer row of helicalswhere it makes tangential contact therewith.

The side-rail of the bedstead is shown at D in the form of aninvertedchannel bar. On each side-rail D the section A has a link mounting byalong link F piv oted at f to said section and a short link f pivotedthereto at F. At its outer end link F is pivoted to a box-dog J whichhas an oscillating bearing on top of rail D by a pin j and on the underside a pawl engaging rack teethj on the rail. The outer end of link f ispivoted to a stud f on the under side of rail D, and the same stud isconnected by a parallel link 7 to the link F. It will be perceived froma study of Fig. 1 that when section A is turned up by handle XV from itsn rmal horizontal position shown in Fig. 2 to the position it occupiesin Fig. 1, it will rotate bodily around the axis of the hinge-joint S inthe marginal frame bar. Its lower right hand end will be guided by linkf while the parallel link f will draw link F, together with dog J, tothe right and the engagement of the dog with the rack teeth will holdthe section at any desired elevation such as is shown, for example, inFig. 1. The helicals B, B on section A wil remain at right anglesthereto, although 11163. are inclinedwith respect to rail D. rhe weightof the occupant acting downardly would tend to make the helicals sagdown toward the right. Such sagging would tend to produce downwardthrust of the section at the marginal frame R to which the helicals areattached but s eh thrust is resisted by the adjoining section of saidmarginal frame to which it is jointed. Consequently the helicals, whenthe section A is elevated, act precisely as they do when the section isin its normal horizontal position. It will be obser ed that section Awhen lifted has been moved away at the bottom from section A so that thegap between the two frame sections is much wider than it was before thelifting.

The middle section A has a different mounting and a different liftingmovement. It will be raised, together with sec tion A by lifting up themarginal frame at the joint S That will draw A to the left slightly tillprojections T on that section ride over stops T on the side rails D.Section A will be guided into the elevated position of Fig. l by shortlink 9 connect ing it with stud (see Fig. 5) and at the right by thelonger link G connecting it with stud h. In this position it will belocked by a bar 9 having a notch on its under side whichengages a pin onlug 9". Section A? will be guided at its left end by a link H connectingit to stud h and locked by the aforesaid stops T in its raised positionof Fig. 1. It will be observed that the lifting has drawn sections A andA much closer together than they are in the horizontal position of Fig.2 and has also increased somewhat the gap between A and A To lower thesections it is, of course, merely necessary to release the aforesaidlocks which uphold them, whereupon they will fall back into thehorizontal positions shown in Fig. 2.

VVhatwe claim as new and desire to secure by Letters Patent is:

1. A hospital bed comprising a supporting frame, and a bed springthereon including a series of bottom frame-sections individually mountedon the said supporting frame, all of said sections being movablerelative to each other and also longitudinally with respect to saidsupporting frame, a set of upright helical springs on each section, amarginal top frame for said springs hinged in sections corresponding tosaid bottom frame-sections and means for adjusting the angular relationof the aforesaid sections to the supporting frame.

2. A hospital bed comprising a supporting frame, and a bed springthereon including a series of bottom frame-sections all of which areseparately linked to said supporting frame so as to be movablelongitudinally with respect thereto and also with respect to each other,a .set of helical springs on each of said frame-sections, a marginal topframe for said springs hinged in sections corresponding to said bottomframesections, and means for adjusting the angular relation of theaforesaid sections to the supporting frame.

3. A hospital bed comprising a supporting frame and a bed springthereon, including a series of bottom frames movably mounted in saidsupporting frame and capable of assuming differing angular relationswith respect to said supporting frame and to each other, and all movablelongitudinally with respect to said supporting frame, means forsupporting the bottom frames in adjusted angular relation with respectto the supporting frame, a set of helical springs on each of said bottomframes, and a marginal top frame for said springs connected thereto andhinged in sections corresponding to said bottom frames.

at. A hospital. bed comprising a supporting frame and a bed springthereon, including a bottom frame formed of disconnected sections all ofwhich are capable of longitudinal movement relative to said supportingframe, individual mounting links for the respective bottom framesections, a series of upright helical springs mounted in groups on andmovable with the several bottom frame sections, and a top frame formedof sections pivoted on lines disposed opposite the spaces between therespective bottom frame sections.

5. A hospital bed comprising a supporting frame and a bed springthereon, including a bottom frame formed in sections supported by saidframe and movable so as to be capable of assuming differing angularrelations with respect to said supporting frame and all movablelongitudinally with respect to said supporting frame, long mountinglinks at oneend of the respective sections, means supporting the otherends of the sections closer to the supporting frame when the framesections are moved to their angular positions, a series of uprighthelical springs seated in groups on the sev-' eral frame sections, and afoldable retaining frame for said springs.

6. A hospital bed comprising a supporting frame and a bed-spring thereonincluding a bottom frame formed in three sections movably connected tothe supporting frame, said sections being longitudinally separable andhaving the middle section spaced far ther from the foot section thanfrom the head section when the spring is horizontal, together with aseries of upright helical springs seated in groups on the respectivesections, and marginal frames for said springs foldable at pointsopposite the gaps between said sections.

7. A hospital bed comprising a bedstead and a bed-spring thereonincluding a bottom frame formed in three sections, said sections beinglongitudinally movable with respect to the said bedstead, uprighthelical springs seated on said sections, foldable marginal frames forsaid springs located approximately in the plane of the tops of saidsprings and means for setting the sections at different angles to thebedstead and maintaining them in that position.

8. A hospital bed comprising a bed frame,

a bed-spring thereon including a bottom frame formed in sections eachsection being mounted to pivot at one end on the bed frame, means formaintaining one of said sections in various adjusted positions, uprighthelical springs on the respective sections and a retaining frame forsaid springs foldable at points opposite the gap between adjacentsections of said bottom frame.

9. A bed-spring of the coil type foldable upwardly and downwardly atsuccessive points on its top level and provided with head, middle andfoot bottom frame-sections said middle and foot ections being arrangedto separate at a downward fold, together with a top frame jointed ateach of the folding points and a group of helical springs between eachpair of top and bottom frame sections.

10. A hospital bed comprising a bedstead, a bed-spring of the coil type,foldable in three sections including an upwardly inclined section at thehead and two oppositely inclined sections below the head sectiontogether with stops on the opposite ends of the bedstead and for the twoend sections, the three sections being hinged on the top level andseparable from one another on the bottom level.

Signed at Long Island City, New York,

GEORGE F. SISBOWVER. LOUIS E. PITTONI.

